Brett A Heron

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Listeria monocytogenes is an important foodborne pathogen with high mortality. L. monocytogenes and five other Listeria species can frequently be found in the same sample. To identify Listeria isolates found in foods to the species level, two multiplex PCRs were designed. The PCR and conventional biochemical methods were compared for the identification of(More)
The distribution of 19 major virulence genes and the presence of plasmids were surveyed in 141 Legionella pneumophila serogroup (SG) 1 isolates from patients and water in Queensland, Australia. The results showed that 16 of the virulence genes examined were present in all isolates, suggesting that they are life-essential genes for isolates in the(More)
In epidemiological investigations of community legionellosis outbreaks, knowledge of the prevalence, distribution, and clinical significance (virulence) of environmental Legionella isolates is crucial for interpretation of the molecular subtyping results. To obtain such information for Legionella pneumophila serogroup 1 isolates, we used the standardized(More)
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